unbound trust-anchor

[Ernie Luzar]

If I comprehend the unbound-anchor man page correctly, at unbound start 
time a trust-anchor is fetched from a unbound website. This is required 
for dnssec. Is this really necessary. I do not like any software 
application to be dialing home. Way to easy for that website to become 
compromised and bad things happen to my host.

Can unbound function without this dial home feature?
How would I go about disabling it.